I just purchased a really nice original condition VH 12, with unaltered barrels. It’s currently choked .35 and .40. I plan on using it as my regular duck gun. I shoot ducks over decoys and occasional pass shoot, if they aren’t decoying that day. I plan on shooting bismuth, hopefully 2-3/4” 1-1/4oz #5s. It’s my understanding that this gun is chambered for 2-5/8” but some members recommended keeping the chamber length as is, but shallow the angle on the forcing cones a bit.
Assuming that is ok to do, what is this I hear about spreader loads? How effective are they and where do you get them? I would typically hunt with a lt modified and lt full barrels for my hunting.